Compressible rubber materials: experiments and simulations
Compressible rubber materials: experiments and simulations
复制标题
可压缩橡胶材料：实验和模拟
DOI：
10.1007/s00419-012-0616-6
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发表时间：
2012
影响因子：
2.8
通讯作者：
S. Diebels
中科院分区：
文献类型：
--
作者：
Koprowski-Theiß;M. Johlitz ;S. Diebels
汽车工业中经常使用多孔橡胶材料。本文研究了一种用于密封的炭黑填充材料。这种材料的区别在于粘弹性行为和由多孔结构引起的结构可压缩性。为了确定材料的性能，进行了单轴拉伸试验和水压试验。其中，主要关注的是基本弹性和整个加载范围内的粘弹性。这些试验的一个重要观察是在静水压缩下的粘弹性行为，这必须包括在材料模型中。由于多孔橡胶的两相特性，考虑了多孔介质理论。为了模拟结构的可压缩性，使用了变形梯度的体积-等厚线分裂。其中，体积部分包括压实点的方面。最后，应用有限粘弹性的概念，引入了一种中间构型。由于在静水压缩下的粘弹性行为，非平衡部分也考虑了体积-等厚线分裂。非线性松弛函数被用来模拟依赖于过程的松弛时间以及关于变形和进给率的高度非线性行为。利用随机辨识算法对模型的材料参数进行估计。
Porous rubber materials are often used in automotive industries. In this paper, a carbon black-filled one is investigated, which is used, for example, as sealing. Such materials are distinguished by viscoelastic behaviour and by a structural compressibility induced by the porous structure. To identify the material behaviour, uniaxial tension tests and hydrostatic compression tests are performed. Therein the main focus of attention lies on the basic elasticity and on the viscoelasticity in the whole loading range. An important observation of these tests is the viscoelastic behaviour under hydrostatic compression, which has to be included in the material model. Because of the two-phase character of cellular rubber, the theory of porous media is taken into account. To model the structural compressibility, a volumetric–isochore split of the deformation gradient is used. Therein the volumetric part includes the aspect of the point of compaction. Finally, the concept of finite viscoelasticity is applied introducing an intermediate configuration. Because of the viscoelastic behaviour under hydrostatic compression, the volumetric–isochore split is taken into account for the nonequilibrium parts, too. Nonlinear relaxation functions are used to model the process-dependent relaxation times and the highly nonlinear behaviour with respect to the deformation and feedrate. The material parameters of the model are estimated using a stochastic identification algorithm.
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影响因子：
6.5
作者：
Zhang, Jiadong;Cui, Zhiming;Shi, Zhenwei;Jiang, Yingjia;Zhang, Zhiliang;Dai, Xiaoting;Yang, Zhenlu;Gu, Yuning;Zhou, Lei;Han, Chu;Huang, Xiaomei;Ke, Chenglu;Li, Suyun;Xu, Zeyan;Gao, Fei;Zhou, Luping;Wang, Rongpin;Liu, Jun;Zhang, Jiayin;Ding, Zhongxiang;Sun, Kun;Li, Zhenhui;Liu, Zaiyi;Shen, Dinggang
通讯作者：
Shen, Dinggang
可压缩聚合物的压力相关特性
影响因子：
2.4
作者：
N. Koprowski;M. Johlitz;S. Diebels
通讯作者：
S. Diebels
具有非线性粘度函数的多孔橡胶建模
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
N. Koprowski;M. Johlitz;S. Diebels
通讯作者：
S. Diebels
影响因子：
2.4
作者：
W. Ehlers
通讯作者：
W. Ehlers